The professor is willing to assume that the populations of s

The professor is willing to assume that the populations of scores from which the above samples were drawn are approximately normally distributed and that each has the same mean and the same variance.

Answer the following, carrying your intermediate computations to at least three decimal places and rounding your responses to at least one decimal place.

1. Given an estimate of this common population variance based on the variance of the sample means given.

2. Given an estimate of this common population variance by pooling the sample variances given.

Solution